The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2016
Filed:
Nov. 22, 2011
Ulrich Schiestl, Hohenems, AT;
Peter Roth, Grabs, CH;
Ulrich Schiestl, Hohenems, AT;
Peter Roth, Grabs, CH;
HILTI AKTIENGESELLSCHAFT, Schaan, LI;
Abstract
The invention relates to a fastener driving tool comprising a tank () for storing a fluid, in particular liquefied petroleum gas, a combustion chamber () connected to the tank (), wherein the combustion chamber () has a movable piston () for powering a driving plunger (), and a metering device () arranged between the tank () and the combustion chamber (), wherein the metering device () has a movable displacement member () for ejecting the fuel out of a metering space (), wherein the displacement member () can be moved by an actuation force from a first power source in a displacement direction against a pressure of the fuel, wherein an additional supporting force from a second power source acts on the displacement member ().